Will a '73 Continental Mark IV tranny fit into a '74 Swinger with a 318?

A Lincoln Mark V, used the Ford C-6 from 1966-1979, nothing else is listed for it period. If it's a ford transmission, it will have a modulator on it. If your MekaniK is using the paint on it to identify the transmission and engine, I'd find another mechanic. I'm not a Ford Guy, but typically a Ford engine has the distributor on the front of the engine. Your 318 will have the distributor on the rear of the engine.
He wasn't using the paint to ID anything, just letting me know that they both had the same blue paint. Also sent me pics of the #'s.
Also, I have been trying to figure out what transmission is in this car. 727 or 904? From everything I've read, it appears to be the 904. Would that be correct?